"context"
"net"
"net/http"
+ "sync"
"time"
"git.arvados.org/arvados.git/sdk/go/ctxlog"
}
var (
- requestTimeContextKey = contextKey{"requestTime"}
+ requestTimeContextKey = contextKey{"requestTime"}
+ responseLogFieldsContextKey = contextKey{"responseLogFields"}
+ mutexContextKey = contextKey{"mutex"}
)
type hijacker interface {
// HandlerWithDeadline cancels the request context if the request
// takes longer than the specified timeout without having its
// connection hijacked.
+//
+// If timeout is 0, there is no deadline: HandlerWithDeadline is a
+// no-op.
func HandlerWithDeadline(timeout time.Duration, next http.Handler) http.Handler {
+ if timeout == 0 {
+ return next
+ }
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
ctx, cancel := context.WithCancel(r.Context())
defer cancel()
})
}
+func SetResponseLogFields(ctx context.Context, fields logrus.Fields) {
+ m, _ := ctx.Value(&mutexContextKey).(*sync.Mutex)
+ c, _ := ctx.Value(&responseLogFieldsContextKey).(logrus.Fields)
+ if m == nil || c == nil {
+ return
+ }
+ m.Lock()
+ defer m.Unlock()
+ for k, v := range fields {
+ c[k] = v
+ }
+}
+
// LogRequests wraps an http.Handler, logging each request and
// response.
func LogRequests(h http.Handler) http.Handler {
})
ctx := req.Context()
ctx = context.WithValue(ctx, &requestTimeContextKey, time.Now())
+ ctx = context.WithValue(ctx, &responseLogFieldsContextKey, logrus.Fields{})
+ ctx = context.WithValue(ctx, &mutexContextKey, &sync.Mutex{})
ctx = ctxlog.Context(ctx, lgr)
req = req.WithContext(ctx)
"timeWriteBody": stats.Duration(tDone.Sub(writeTime)),
})
}
+ if responseLogFields, ok := req.Context().Value(&responseLogFieldsContextKey).(logrus.Fields); ok {
+ lgr = lgr.WithFields(responseLogFields)
+ }
respCode := w.WroteStatus()
if respCode == 0 {
respCode = http.StatusOK